Wrapping machine



April 27, 1937.

J. VAN BUREN WRAPPING MACHINE 10 Sheefs-Sheet 1 Filed NOV. 9, 1955- IN VEN TOR.

John Uan Bwzwen April 7, 7- J. VAN BUREN 2,078,619

WRAPPING MACHINE Filed Nov. 9, 1935 10 Sheets-Sheet 2 INVENTOR MK; 4John IhnBwren ATTOR April 7, 7- J. VAN BUREN 2,078,619

WRAPPING MACHINE Filed Nov. 9, 1935 10 Shee'ts-Sheet 5 INVENTOR John vanBuren/ BY MAILJL M m ATTORNEYS April 27, 1937. J. VAN BUREN WRAPPINGMACHINE Filed NOV. 9, 1955 10 Sheets-Sheet 4 "(tiff INVENTOR Jbl m,UwnBwmn BY 2% Wwfi ATTOR April 1937- J. VAN BUREN 2,078,619

' WRAPPING MACHINE Filed Nov. 9, 1955 10 Sheets-Sheet 5 INVENTOR JahnMm, Burma mwdz ATTORNEYX April 1937- J. VAN BUREN 2,078,619

WRAPPING MACHINE Filed Nov. 9, 1935 10 Shets-Sheet T R Ii John UanBurenm K 2 I April 1937- J. VAN BUREN 2,078,619

WRAPPING MACHINE Filed Nov. 9, 1955 10 SheetsSheet 9 iiiifllfifiifi'i 05.Iljl 6 INVENTOR 27 200 20 Joluz (Jam/Bum April 27, 1937. VAN BUREN2,078,619

WRAPPING MACHINE Filed Nov. 9, 1955 10 Sheets-Sheet 10 INVENTORATTORNEYS.

Patented Apr. 27, 1937 UNITED STATES PATENT OFFICE 20 Claims.

This invention relates to wrapping machines.

More particularly stated, the invention relates to wrapping mechanismfor articles, such as cakes of soap.

In order to prevent soap from drying out or, in other words, to keep itmoist, it has been found desirable to wrap the cakes in waxed paper.Such wrappers are sealed by the application of heat which melts orsoftens the wax forming a binder for the overlapping portions of thewrapper. When the cakes are paneled or provided with depressed faces theseal must be formed on the edge of the cake since it is difficult toexert even pressure across the face having a depressed portion.

The invention has for its salient object to provide a wrapping machineso constructed and arranged that the wrappers will be tightly wrappedand secured along one edge and at the ends of the articles wrapped.

Further objects of the invention will appear from the followingspecification taken in connection with the drawings which form a part ofthis application, and in which Fig. 1 is an elevational view of amachine constructed in accordance with the invention;

Fig. 2 is a top plan view of the machine;

Fig. 3 is a plan view of the blank used for forming the wrapper;

Fig. 4 is a perspective view partly broken away, showing the wrappedarticle;

Fig. 5 is a rear elevation of the machine, parts being shown in section;

Fig. 6 is a front elevation of the machin shown in Fig. 1;

Fig. 7 is a plan view partly in section taken on line 'l-l of Fig. 1,looking in the direction of the arrows;

Fig. 8 is a sectional plan view taken on line 8-8 of Fig. 1, looking inthe direction of the arrows;

Fig. 9 is a vertical sectional elevation on an enlarged scaleillustrating the paper feeding and wrapper folding mechanism;

Fig. 10 is a detail sectional elevation taken substantially on lineIll-l of Fig. 9;

Fig, 11 is a detail sectional elevation through the wrapper foldingmechanism, one of the articles being shown in its initial wrappingposition and another article being shown in an intermediate stage of thewrapping operation;

Fig. 12 is a sectional elevation taken substantially on line i2-l2 ofFig. 11, this figure being taken at right angles to Fig. 11;

Fig. 13 is a sectional elevation taken on line Iii-I3 of Fig. 11;

Fig. 14 is a sectional elevation taken substantially on line i l-l4 ofFig. 11;

Fig. 15 is a view similar to Fig. 11 but showing the article and wrapperat a later stage in the wrapping operation, the bottom folds in thewrapper being formed;

Fig. 16 is a view similar to Fig. 15 but showing the article beingwrapped at a still later stage in the wrapping operation;

Fig. 17 is a view similar to Fig. 16 but showing the parts at a slightlylater stage in the operation of the feeding and folding mechanism;

Fig. 18 is a sectional elevation taken substantially on line I8l8 ofFig. 16;

Fig. 19 is a sectional elevation at right angles to Fig. 17 and takensubstantially on line Iii-J9 of Fig. 17;

Fig. 20 is a vertical sectional elevation through the wrapping andfolding mechanism showing a slightly modified form of pocket;

Fig. 21 is a horizontal sectional view taken substantially on line 2l-2lof Fig. 20, looking in the direction of the arrows;

Fig. 22 is a horizontal sectional view taken substantially on line 22-22of Fig. 20, loolclng in the direction of the arrows;

Fig. 23 is a vertical sectional view taken substantially on line 23--23of Fig. 20, looking-in the direction of thearrows;

Figs. 24, 25 and 26 are enlarged vertical sectional views through thepocket and folding mechanism shown in Fig. 20, the pocket and foldingmechanism being shown in successive stages or steps of operation; and

Fig. 27 is a horizontal sectional view taken substantially on line 21-21of Fig. 25, looking in the direction of the arrows.

The invention briefly described consists of a machine for tightly andsecurely wrapping an article, such as a cake of soap, in a waxedwrapper. The machine comprises means for feeding the article andwrapper, for folding the wrap per around the article, for tucking theends of the wrapper and folding the tucked ends across the ends of thearticle. The wrapper is stretched tightly around the article and thefolded ends are tightly held as they are secured in folded position. Thewrapper and article are fed into a pocket and are fed with the pocketand subsequently by the pocket to successive positions in which thetucks and folds are made in the wrapper.

Further details of the invention will appear from the followingdescription.

In the particular embodiments of the invention illustrated in thedrawings the articles, such 5 as cakes of soap, are fed to the machineon a belt conveyor 30 between guide walls 3| and 32. The belt conveyoris supported on the usual supporting pulleys, one pulley 33 being shownin the drawings. This pulley is mounted on a shaft on which is secured agear 34 which meshes with a gear 35 on a shaft 36. The shaft 36 has alsomounted thereon a sprocket wheel 31 which is connected by a chain 38 toa sprocket wheel 39 mounted on the shaft 40. The shaft 40 is driven by asprocket chain II which engages a sprocket wheel 42 mounted on the shaft40.

The chain 4I operates as the driving medium for many operative parts ofthe machine and is driven by a sprocket wheel 42 carried by the maindrive shaft 43 of the machine. The shaft 53' is driven from any suitablesource of power which is connected to a drive pulley 44 secured to theshaft. The chain II also drives a shaft 55 mounted below shaft 43 andhaving secured thereto a plurality of cams, hereinafter described, fordriving various parts of the mechanism.

The parts above described and the other operative parts of the machineare mounted on a machine frame comprising a base or bed plate 50 and avertical frame 5I connected thereto and extending upwardly therefrom.

As above stated, the articles or cakes of soap X are fed into themachine on the conveyor 30. The conveyor passes through spaced openings52 and 53 in a vertical wall or frame 5! and the upper lap passesthrough an opening 54 in an abutment or stop 59 and the cakes arearrested in their feeding movement by the abutment. The forward cake isfed laterally at the proper time in the cycle of operation in themachine by a plunger 55 having a plate 56 at the advance end thereofengageable with the forward cake. The plunger 55 is'operated by a pitman51 which is connected to a bell crank lever 58 mounted on a fixed pivot59. The other arm of the bell crank lever has connected thereto a linkor lever 60 having a bifurcated end 6| which straddles the 0 shaft 45.The link or lever 60 has secured thereto a roller 62 which engages agroove in a cam 63. It will be obvious that as the shaft 45 and cam 63are rotated, the plunger 55 will be reciprocated and will discharge theadvance cake 55 from the conveyor 30 to platform 05. The abutment 54 hasformed thereon a back stop or abutment 64 to position the cake onplatform 65.

This cake will thus be fed by the plunger 55 to the support or platform65 whichis carried 60 by a vertically reciprocatable frame 66 slidablymounted on a guideway 61. A link 68 connects the lower end of the frame66 to a bell crank lever 69 mounted on a fixed pivot I0. The upper endof the bell crank lever 69 is connected to a 65 link II having abifurcated end 12 which straddles the shaft 45 and also having a rollerI4 which is positioned in a cam groove in a cam I5. By means of theconnections and operating mechanism just described the platform or sup-70 port 65 is periodically raised to feed the cake upwardly. During thisfeeding movement a wrapper is positioned above the cake and is engagedthereby and fed into folding mechanism 75 therewith.

aovaeie Wrapper feeding mechanism In the form of the inventionillustrated in the drawings, a double wrapper is used. The outer wrapperis preferably formed of laminated waxed paper in the form of a sheetwhich is fed and cut into suitable lengths. The wrapper sheet issupplied in a roll R which is mounted on a spindle 80. The web or sheetis led from the supply roll R over idlers BI and 82 to a positionbetween a pair of feed rolls 83, 84. From these rolls the strip is ledbetween a pair of guide members 85, 86 and is fed by means of feedingpins 81 carried by feed chains 88 which are mounted on sprockets 89, 90and 9|. The paper web is provided at spaced intervals with perforationswhich are engaged by the pins 81. The sprocket 89 is mounted on a shaft92 on which is also mounted a spur gear 93 which meshes with a gear 94carried by a shaft 95. The shaft 95 also has secured thereto a sprocketwheel 96 which is driven by the chain 4 I.

The gear 94 on ashaft 95 also meshes with a gear! carried by a shaft 98.Gear 91 also meshes with a gear 99 carried by a shaft I00. The shafts 98and I00 have secured thereto feed rollers IOI and I02 between which thepaper Web passes from the guide members 85 and 86. The strip or web isfed downwardly by feed rollers WI and I02 between vertical guide membersI03 and I04 and is cut by a rotary knife I05 carried by a shaft I06. Theknife I05 coacts with a stationary knife I01 mounted on a base I08.Above the knife I01 is slidably mounted a plate I0I' which is springactuated in one direction by springs I09. The movement of the plate I0I'by the springs is limited by suitable stops.

The rotary knife I05 is carried by a roll II 0 mounted on the shaft I06and this roll also carries a pair of lugs III and H2 which are adaptedto engage abutments H3 and H4 projecting from the end portions of theplate I0'I'.

Thus, as the knife I05 rotates with the roll IIO the wrapper strip orweb will be severed by the coaction of the knife I05 with the knife I0I.As the web is being cut in this way the plate I0'I' will be pushedbackwardly by the engagement of the lugs H3 and H4 by the lugs I I I andI I2. The plate when released will spring back and prevent the waxedpaper web from sticking to the knife I0'I which would interfere with thefeeding movement thereof.

The inner wrapper, which is slightly smaller in dimensions, than theouter wrapper is fed from a hopper H by means of feed rolls I I5 and II6 which engage the bottom blank and feed this blank to a position inwhich it is engaged by feed rolls H1 and H8 and is .fed between guidingmembers H9 and I20 to a position in which it is engaged and fed with theouter wrapper by a pair of feed rolls HI and I22. From these last namedfeed rolls I2I and I22 the two wrapper blanks are engaged by feed rollsI22 and I23. Feed rolls I2I, I22 and I23 are carried by an adiustablymounted bracket I26. 8

In order to properly space the bracket and the feed rolls I2I, I22 andI23 from the article and wrapper receiving pocket P, hereinafterdescribed, the bracket I26 is adjustably mounted, being supported byfixed posts I25. The posts I25 are provided with rack teeth I2'I whichare engaged by pinions I28 carried by a spindle I29 mounted inbracketI26. The spindle can be rotated by a handle I30 and thus the bracket canbe adjusted toward and from the pocket P to thus properly position thewrapper.

The feed rolls H5, H and H1 are driven by geared connections shown fromthe shaft of the feed roll H0. This shaft is provided with a sprocketwheel I3I which is engaged by the sprocket chain 4i.

The-shaft I00 of the rotary cutter I05 is driven by a suitable fast andslow" driving con- I nection from a shaft I35 which carries a sprocketwheel I30 engaged by the chain 4i. The "fast and slow driving connectionbetween the shafts I00 and I35 forms no part of the present inventionand need not be further described.

The feed rolls I 2I I22 and I23 are geared together and the roll I23isprovided with a gear I31 which meshes with a gear I38 mounted on ashaft I38. This shaft is driven by a shaft I40 through a fast and slowdriving connection,

the shaft I40 being provided with a sprocket l4 engaged by thesprocketchain 4I and driven thereby.

From the feed rolls I22 and I20 the superposed outer and inner wrapperblanks are fed over supporting members I45 and are supported thereby inthe path of upward movement of the cake or article as it is fed upwardlyby the vertical movement of the support 00.

Folding mechanism Fig. 3 illustrates the blank of the outer wrapperwhich, as shown; is provided with five sections A, B, C, D and E. Thesections A and C form the covers for the two faces of the cake,

B and E form the outer covers for the edges of the cake and the ends ofthe cake are covered by the portions of the wrapper beyond the foldlines X X and YY. The inner wrapper does not extend over the ends of thecake and only between the lines X-X and YY. This wrapper is alsoslightly shorter than the outer wrapper, the ends being shown by thedotted lines F and G.

The wrapper is fed by the feed rolls I22 and I23 to a position in whichthe section B of the r wrapper is disposed above the cake as it is fedupwardly with the upward movement of the support 05. As the cake andwrapper are fed upwardly they will be fed into a pocket comprising wallsI and ISI, which press the wrapper 50 against the two faces of the cake.The wall I5I carries lugs or tuckers I52 and I53 disposed at the ends ofthe pocket, which engage the projecting end portions of the wrapper andtuck the ends positioned beyond the section B of the wrapper in adownward direction against the ends of the cake.

In the form. of the invention illustrated in Figs. 1-19, inclusive, theupper end of the pocket is formed by an end wall or plate I54 which is 0carried by vertically movable rods I55 slidably mounted in bearings I50.Heads I51 are formed I on the upper ends of the rods I55 and areperiodically engaged in a manner hereinafter described to push the rodsdownwardly'to the position shown in Fig. 9. When the rods are disposedin this position the plate or end wall I54 will be disposed above thewrapper and will be engaged thereby as the article and wrapper are fedupwardly to a position between the side walls 7 I50 and I5I of thepocket.

The wall I50 is carried by pins I00 and is spring pressed in onedirection or toward the wall I 5I by springs ISI. This spring pressureinsures the firm engagement of the sides of the article and wrapper bythe walls I50 and I5I.

The side wall I5I of the pocket is vertically movable and is carried bya member I03 having on its upper end a roller I04 mounted on a supportor rail I05. The rail I05 is carried by a bracket I00 which also carriesa rail or track 5 I02 above the roller I04. The bracket I00 is supportedby a link I01, the upper end' of which is connected to an arm I00 of abell crank lever mounted on a fixed pivot I00. The other arm I10 of thebell crank lever is connected to a link 10 "I having a bifurcated endI12 which straddles a shaft I13. The end of the link I" is also providedwith a roller I14 which is positioned in a This shaft also carries asprocket wheel I16 15 which is driven by the sprocket chain H. The Ill711k I01 is slidably mounted in a vertical guide The pocket into whichthe article and wrapper are fed is slidably mounted in the following 20manner: A frame member I8 is secured to the pocket and is mounted onrods IOI and I02 which are slidable in bearings I03 and I84. The ends ofthe frame member I00 have connected thereto links I and I80, theopposite ends of 25 which are secured to a lever I01. A pitman I00 isconnected to the lever I81. The opposite end of the pitman I88 isbifurcated and straddles the shaft I13 and is provided with a roller I90engaging or positioned in a groove in a cam I 0| 30 after described. 35

From the foregoing description it will be seen that as the wrapper andarticle are fed into the rear faces thereof with the ends of the wrapper40 extending downwardly below the lower ends of the cake or article.This position is illustrated in Fig. 11.

Also, as shown in Fig. 12, the upper outer ends of the wrapper will betucked by the tuck- 45 ers I52 and I53 against the ends of the cake orarticle.

is lowered and the article and wrapper are moved 50 of the wrapper hasbeen engaged by a spindle I carried by an arm I96 mounted on a fixedpivot I91.

. The 60 spindle I95 continues to engage this fold and to hold ittightly against the bottom edge of the cake as the cake and wrapper arefed with the pocket. However, as the cake is fed forwardly the edge I90of a shelf I99 will fold the other 65 or outer projecting end over thefolded end of the wrapper. This position is shown in Fig. 16. After theends D and E of the wrapper are folded across the bottom of the cake inthe manner above described, the lower edges of the wrapper are tuckedupwardly against the ends of the plate by movable tuckers 2I0 and 2which are carried by a frame 2I2 supported on a bracket 2I3 slidablymounted in a frame 2. A link 2I5 is connected to the bracket 2|3 and has75 its lower end connected to an arm 2I6 of a bell crank lever mountedon the pivot 10. The other arm 2I1 of the bell crank lever has connectedthereto a link 2I8 having a bifurcated end which straddles the shaft andcarries a roller 2I9 position-ed in a groove in a cam 220 mounted on theshaft 45. The bottom tuckers operate to tuck the bottom end portions ofthe wrapper upwardly when the cake and wrapper and pocket in which theyare positioned reach the position II in Fig. 16.

The cake is fed with the pocket over the shelf I99 to position II andthe wall I5I of the pocket is then ra sed and the pocket returns to itsinitial or receiving position. The front or advance end flaps J and Kare disposed between and engaged by outwardly flared members 202 and 203mounted at the entrance of side walls 200 and 20L The wall I5I isprovided with plates 204 and 205 which engage the outwardly projectingend flaps H and I of the wrapper, on the next feeding movement of thepocket, and fold these ends inwardly against the ends of the cake, asshown in Fig. 18. The plates 204 and 205 continue to hold the flaps Hand I against the ends of the cake until the cake reaches the positionshown in Fig. 19 in which the other end folds J and K are folded overthe ends H and I. The edges of the folds J and K will be pinched betweenthe ends of the walls 200 and 20! and held firmly in position thereby.

The operating mechanism for actuating the arm I96 and rotating spindleI95 to form the inside bottom fold will now be described.

The spindle I95 is mounted in suitable bearings carried by the arm I96and this arm is connected, as hereinbefore stated, to the shaft I91. Thearm I96 has formed thereon an extension 225. The upper end of extension225 is connected by a link 226 to an arm 221 of a bell crank lever 220which is mounted on the pivot 59. The other arm 229 of the bell cranklever has connected thereto a link 230 having a bifurcated end whichstraddles the shaft 45 and also having a roller 23f disposed in a cam232 secured to the shaft 45.

The spindle I95 is rotated in the following manner: The outer end of thespindle is connected through a universal joint 235 to a shaft 236. theother end of which is connected through a universal joint 231 to a shaft238. The shaft 238 is driven from a shaft 234 through a sprocket andchain connection 239, 240 and 2M. Shaft 234 is driven by chain 4|.

After the article and wrapper have been discharged from the pocket theend plate I54 and the rods I are pushed downwardly by the engagement ofthe heads I51 carried by the upper ends of the rods I55 with a plate 245carried by an arm 246 mounted on a shaft or spindle 241 to which is alsosecured an arm 248. The arm 248 has secured thereto one end of a link249, the other end of which is provided with a bifurcated end 250 whichstraddles the shaft I13. This end of the link 249 also has securedthereto a roller 25I which engages a cam 252 secured to the shaft I13.

As the cakes are fed from the position shown at I in Figs. 15 and 16 tothe intermediate position shown at II, they are engaged by a downwardlymovable hook 260. This hook is mounted on a fixed pivot 26I and isnormally pressed downwardly by a spring 262 which is mounted on aspindle 263 carried by a bracket 264. The outer end of the hook 260 isbeveled, as shown at 265, and extends through an opening in the wall i5!of the pocket and into a recess 266 formed on the undersurface of theplate I54. As the cake moves toward the hook the front end of the hookwill be raised and after the cake has reached the position shown at IIin Fig. 11 the hook will drop over the outer edge of the cake and willretain the cake in position when the wall I5! is raised and the pocketreturns to the receiving position.

Before the pocket can return to its receiving position the wall I5I israised by the upward movement of the track or support I65 and link I61which carries the support. After this wall has been raised in thismanner to the position shown in dot and dash lines in Fig. 11 the pocketwill be fed to the right viewing Figs. 1 and 9 and will return to itsinitial position whereupon the wall I5I will be lowered to the positionshown in full lines in Fig. 11. The plate I54 is then lowered to thereceiving position, as shown in Fig. 9.

When the article and wrapper are positioned at 11 and the lower tuckshave been formed, the lower tuckers will be lowered out of operativeposition. The end folds J, H, K and I will then take the positions shownin Fig. 13.

When the pocket moves the next cake from position I to position II thewall I5I and the plates 204 and 205 carried thereby will, as abovestated, engage the cake in the position II in the manner shown in Fig.18. The Iclds H and I will be folded against the ends of the cake by theplates 204 and 205 and the cake will be pushed by the movement of thewall I5I of the pocket from the position II to the position III. Thewalls 200 and 2M and their extensions 202 and 203 will engage the foldsJ and K and fold them toward the end of the cake as the folds H and Iare being held in position by the plates 204 and 205 in the manner shownin Fig. 19. The cake will then be fed between the walls 200 and 2M whichform the side walls of the delivery or discharge chute or guideway. Thebottom wall, as shown at 210, supports the cakes and in the position IIIthe upper edge of the cake is engaged by a spring pressed plate 21Iwhich is pressed downwardly by springs 212 carried by pins 213. Suitableheaters are provided for heating the end folds J, H, K and I as theypass between the walls 200 and 2M so that the wax will be melted andthese folds will be sealed by the wax. Such heaters are shown at- 215and 216.

A heater is also provided for heating the end folds D and E which aredisposed on the bottom of the wrapped article as it is fed through thedischarge chute to the discharge conveyor. This heater is shown at 211.

The walls 200 and 20I are resiliently pressed against the ends of thecake by means of springs 218 which surround pins 219 carried by thewalls and extending through lugs 280.

At the discharge end of the delivery or discharge chute the wrappedarticles pass between a pair of endless conveyors 285 and 286 and theyare fed by these conveyors over a supporting table and away from thewrapping mechanism. The embodiment of the invention illustrated in Figs.1-19, inclusive, operates as follows:

Operation The articles, such as cakes of soap, are fed into the machineon the endless conveyor 30 and are interrupted in this feeding movementby the stop plate or abutment 59 which positions them opposite the feedplate 58 carried by the plunger 55.

The advance or front cake is then discharged from the conveyor by theforward movement of the plate and plunger and is positioned on the shelfor support 65. At this stage in the operation the shelf 65 is disposedin the position shown in Fig. 9.

The cake is then'fed upwardly by the upward movement of the shelf orsupport 65 and engages the end surface of the inner wrapper which hasbeen previously fed to the supports I45. The cake and wrapper are thenfed upwardly together and during this movement engage the under-surfaceof the plate I54 and move this plate upwardly between the walls I50 andI5I of the pocket. Fig. 11 shows the wrapper and article after they havebeen fed into the pocket. The wrapper has been wrapped around the endand two faces of the article and the upper ends have been tucked by theoperation of the tuckers I52 and I 59 carried by wall I5I. The ends Dand E of the wrapper project downwardly, as shown in Fig. 11.

The support or shelf 65 is then it wered and the spindle I95 is moved tothe left about the pivot I91 and folds the inner end D against thebottom edge of the cake. The rotation of the spindle maintains this foldin tight engagement with the lower edge of the cake and the pocket thenmoves to the left to position the cake over the support or plate I99 andin the position shown at I in Fig. 16.

The movement of the pocket and the wrapped article therein will becontinued to the position shown at II in Fig. 16 in which position thebottom tuckers 2H) and 2 move upwardly to tuck the lower ends of thewrapper against the ends of the cake. This operation is shown in Figs.13 and 14 and it will be noted in Fig. 13 that the ends J, H, K and Iproject outwardly from the ends of the cake.

When the pocket has reached the position II the wall I 5i and tuckersI52 and I53 and plates 45 209 and 205 carried thereby will be raised bythe upward movement of the support I65, bracket I66 and link I61. Afterthis wall has been raised the links I85 and I88 and the actuatingmechanism therefor will return the pocket to thereceiving position shownin Fig. 11. Whenthe pocket has reached this position the plate I54 willbe lowered by the engagement of the rods I55 and actuation thereof bythe plate 245 ,carried by the arm 246. Also, the wall I5I and tuckersI52 and I53 and plates 204 and 205 carried thereby will be lowered'tothe position shown in Fig. 11. The pocket is then ready to receive thenext article and wrapper as they are fed upwardly by the upward movementof the shelf or support 65.

The tucks are formed in the second wrapper in the same manner as abovedescribed, and the article and wrapper are then fed to the support I 99.During this last movement of the pocket the plates 204 and 205 willengage and fold the end flaps H and I against the ends of the cakepreviously fed and this cake will be fed between the walls 200 and 20Icausing the end flaps J and K to be folded against the folded flaps Hand I in the manner shown in Fig. 19.

The structure illustrated in Figs. 20-27, inclusive, is substantiallythe same as that shown in the preceding figures, but differs therefromin that the plate which forms the upper wall or top 75 of the pocket ismounted independently of the -no article has been deposited pocket anddoes not move therewith. -By reason of this construction the plate canbe lowered to receiving position before the pocket has been returned toreceiving position.

Referring to the structure shown in Figs. 20-27, inclusive, the plate290 which forms the upper end or top of the pocket and corresponds tothe plate I54 shown in the other form of the invention, is carried by avertical bar or strip 29I which is slidably mounted in brackets 292. Theupper end of the bar 29I is provided with a head 293 which is disposedbeneath and adapted to be engaged by a plate 294 carried by the arm 246and corresponding to the plate 245 shown in the other form of theinvention.

The arm 246, as hereinbefore described, forms one arm of a bell cranklever pivoted at 241 and this lever is indicated at 248. The arm 248 isconnected to a link 249 which is provided with a bifurcated end 250which straddles the shaft I13. The link 249 also has a roller whichengages a cam 252 mounted on the shaft I19.

The bar 29I has connected thereto adjacent the upper end thereof a lug295 on which is mounted a pin 296 which extends upwardly through a slot291 in the plate 294. A collar 29B is mounted on the upper end of thepin 296 and rests on the upper surface of the plate 294. The purpose ofthe pin 296 and collar 298 is to insure the upward movement of the plate290 in case on the ledge or support 65.

The construction just described operates as follows: When the articleand wrapper are fed upwardly by the upward movement of the shelf orsupport 65 the wrapper will be pushed into engagement with the undersurface of the plate 290 and the plate will move upwardly between theand the arm 246 of the bell crank lever and the actuating mechanismtherefor will be so timed as to start the downward movement of the bar29I and plate 290, as shown in Fig. 25. Thus, when the pocket isreturned quired to lower the plate in the embodiment of the inventionshown in Figs. 1-19 will be saved with the construction shown in Figs.20-27, inclusive. This operation is repeated as each successive articleis fed with its wrapper into the pocket and is fed with the pocketin'the manner described. The wrapped articles as they are successivelyfed over the support 210 and between the walls 200 and 20I push thearticles in advance thereof along the support and they pass successivelybetween the endless conveyors 285 and 286 and out of the machine.

As the wrapp d articles are fed through the discharge chute orpassageway the folded ends J, H and K, I are sealed by the operation ofthe heaters and the ends D and E are also sealed by the action of theheater disposed below these folded ends.

From the foregoing specification it will be seen that simple, practicaland efficient wrapping mechanism has been designed and that thismechanism will operate to tightly fold and secure the waxed wrappersaround the articles.

Although one specific embodiment of the invention has been particularlyshown and described, it will be understood that the invention is capableof modification and that changes in the construction and in thearrangement of the various cooperating parts may be made withoutdeparting from the spirit or scope of the invention, as expressed in thefollowing claims.

What I claim is:

1. In a wrapping machine, a pocket having spaced walls adapted toreceive therebetween an article and wrapper, means for feeding anarticle and wrapper into said pocket, means for moving said pocket andsaid article and wrapper therein, a distance corresponding to the widthof the article, to a support, and means for raising the advance wall ofthe pocket, said pocket moving means operating to return the pocket toits initial position after the said wall is raised and said wall beinglowered to its initial position after the return of the pocket.

2. In a wrapping machine, a pocket having spaced walls adapted toreceive therebetween an article and wrapper, means for feeding anarticle and wrapper into said pocket, means for moving said pocket andsaid article and wrapper therein to a support, means operable during themovement of the pocket to fold the ends of the wrapper across the bottomotthe article, and means for vertically raising thegadvance wall of thepocket, said pocket moving-means operating to return the pocket to itsinitial position after the said wall is raised and said wall beinglowered to its initial position after the return of the pocket.

3. In a wrapping machine, a pocket having spaced walls adapted toreceive therebetween an article and wrapper, means for feeding anarticle and wrapper into said pocket, means for moving said pocket andsaid article and wrapper therein to a support, and means carried by saidpocket and engageable with end portions of the wrapper of an article onsaid support, previously fed by said pocket, for folding said endportions against the ends of the article.

4. In a wrapping machine, a pocket having spaced walls adapted toreceive therebetween an article and wrapper, means for feeding anarticle and wrapper into said pocket, means for moving said pocket andsaid article and wrapper therein to a support, means operable during themovement of the pocket to fold the ends of the wrapper across the bottomof the article, and means carried by said pocket and engageable with endportions of the wrapper of an article on said support, previously fed bysaid pocket, for folding said end portions against the ends of thearticle.

5. In a wrapping machine, a pocket having spaced walls adapted toreceive therebetween an article and wrapper, means for feeding anarticle and wrapper into said pocket, means for moving said pocket andsaid article and wrapper therein to a support, means operable during themovement of the pocket to fold the ends of the wrapper across the bottomof the article, means carried by said pocket and engageable with endportions of the wrapper of an article on said support, previously fed bysaid pocket, for folding said end portions against the ends of thearticle, and means for raising the advance wall of the pocket, saidpocket moving means operating to return the pocket to its initialposition after the said wall is raised and said wall being lowered toits initial position after the return of the pocket.

6. In a wrapping machine, a pocket having spaced walls adapted toreceive therebetween an article and wrapper, means for feeding anarticle and wrapper into said pocket, means for movin said pocket andsaid article and wrapper therein to a support, means carried by thepocket for tucking the upper projecting ends of the wrapper downwardlyagainst the ends of the article. means operable during the movement ofthe pocketand article and wrapper therein to fold the ends of thewrapper across the bottom of the article, means operable on the wrapperafter the article and wrapper have been moved with the pocket to thesupport for tucking the lower projecting ends of the wrapper upwardlyagainst the ends of, the article, and means for folding the wrapperagainst the ends of the article.

'7. In a wrapping machine, a pocket having spaced walls adapted toreceive therebetween an article and wrapper, means for feeding anarticle and wrapper into said pocket, means for moving said pocket andsaid article and wrapper therein to a support, means carried by thepocket for tucking the upper projecting ends of the wrapper downwardlyagainst the ends of the article, means operable during the movement ofthe pocket and article and wrapper therein to fold the ends of thewrapper across the bottom of the article, means operable on the wrapperafter the article and wrapper have been moved with the pocket to thesupport for tucking the lower projecting ends of the wrapper upwardlyagainst the ends of the article, means for folding the wrapper againstthe ends of the article, and means for raising the advance wall of thepocket, said pocket moving means operating to return the pocket to itsinitial position after the said wall is raised and said wall beinglowered to its initial position after the return of the pocket.

8. In a wrapping machine, a pocket having spaced walls adapted toreceive therebetween an article and wrapper, means for feeding anarticle and wrapper into said pocket, means for moving said pocket andsaid article and wrapper therein to a support, means for tucking theupper projecting ends of the wrapper, means for folding the ends of thewrapper against the bottom of the article, means for withdrawing thepocket and returning the pocket to its initial position, and meansincluding members carried by the pocket for folding the lateral ends ofthe wrapper against the ends of the article on the next succeedingfeeding movement of the pocket.

9. In a wrapping machine, a pocket having spaced walls adapted toreceive therebetween an article and wrapper, means for feeding anarticle and wrapper into said pocket, means for moving said pocket andsaid article and wrapper therein to a support, means for tucking theupper projecting ends of the wrapper, means including a positivelyrotated member for folding the ends of the wrapper against the bottom ofthe article, means for withdrawing the pocket and returning the pocketto its initial position, and means including members carried by thepocket for folding the lateral ends of the wrapper against the ends ofthe article on the next succeeding feeding movement of the pocket.

10. In a wrapping machine, a pocket, means for feeding an article and awaxed wrapper into said pocket with the ends of the wrapper projectingdownwardly below the article and pocket, means for folding said endsupwardly against the bottom of the article, means for folding thelaterally projecting ends of the wrapper against the ends of thearticle, a delivery passageway having a bottom, a top andside walls,heating means for heating-the folded bottom ends of the wrapper as thewrapped article passes through the passageway, and heating means forheating the fold= ed lateral ends of the wrapper as the wrapped articlepasses through the passageway.

11. In a wrapping machine, a pocket having spaced walls adapted toreceive therebetween an article and wrapper, means for feeding anarticle and wrapper into said pocket, means for moving said pocket andsaid article and wrapper therein to a support, means for folding theends of the wrapper against the bottom of the article during themovement of the pocket, a discharge or delivery passageway having abottom, side walls and a top, means for returning the pocket toreceiving position, and means including end fold engaging 'memberscarried by the side walls of the delivery passageway and by the advancewall of the pocket for folding the lateral end folds of the wrapperagainst the ends of the article on the next feeding movement of thepocket.

12. In a wrapping machine, a pocket having spaced walls adapted toreceive therebetween an article and wrapper, means for feeding anarticle and wrapper into said pocket, means for moving said pocket andsaid article and wrapper therein to a support, means for folding theends of the wrapper against the bottom of the article during themovement of the pocket, a discharge or delivery passageway having abottom, side walls and a top, means for returning the pocket toreceiving position, and means including end fold engaging memberscarried by the side walls of the delivery passageway and by the advancewall of the pocket for folding the lateral end folds of the wrapperagainst the ends of the article on the next feeding movement of themembers carried by the wall of the pocket operating to fold one set ofend folds against the ends of the article before the other set of endfolds are folded against the first folds.

13. In a wrapping machine, a pocket having spaced walls adapted toreceive therebetween an article and wrapper, means for feeding anarticle and wrapper into said pocket means for moving said pocket andsaid article and wrapper therein to a support, means for folding theends of the wrapper against the bottom of the article during themovement of the pocket, a discharge or delivery passageway having abottom, side walls and a. top, means for returning the pocket toreceiving position, and means including end fold engaging memberscarried by the side walls of the delivery passageway and by the advancewall of the pocket for folding the lateral end folds of the wrapperagainst the ends of the article on the next feeding movement of thepocket, said members carried by the wall of the pocket operating to foldone set of end folds against the ends of the article and hold said foldsin position until the outer folds are formed and are held between theside walls of the delivery pas: sage. 1

14. In a wrapping machine, a pocket having spaced walls adapted toreceive therebetween an article and wrapper, a plate mountedindependently of the pocket arranged to move vertically into the pocketbetween the walls thereof to form an inner end wall, means for feedingan article and wrapper into engagement with said plate and into saidpocket, means for moving the pocket and article laterally, and means forlowering said plate vertically to receiving position after said pockethas been moved laterally.

15. In a wrapping machine, a pocket having spaced walls adapted toreceive therebetween an article and wrapper, a plate mountedindependently of the pocket arranged to move vertically into the pocketbetween the walls thereof to means for feeding an moved over saidsupport.

6. In a wrapping machine a pocket having spaced walls adapted to receivetherebetween an article and wrapper, a plate mounted independently ofthe pocket arranged to move into the over said support.

been moved from receiving to discharge position.

18. In a wrapping machine, a pocket having spaced walls adapted toreceive therebetween an article and wrapper, a plate mountedindependently of the pocket arranged to move vertically into the pocketbetween the walls thereof to form an inner end wall, means for feedingan article and wrapper into engagement with said plate and into saidpocket, means for moving the pocket and article from receiving todischarge position, means for raising the advance wall of said pocketvertically when the pocket has been moved from receiving to dischargeposition, means for returning the pocket to receiving position, saidwall raising means operating to return the wall to its lowered position,and means for lowering said plate to er said pocket has been moved fromreceiving to discharge position.

19. In a wrapping machine, a pocket having spaced walls adapted toreceive therebetween an article and wrapper, means for feeding anarticle and wrapper into said pocket, means for moving said pocket andsaid article and wrapper therein to a support, means for raising theadvance wall of the pocket, said pocket moving means operating to returnthe pocket to its initial position after the said wall is raised andsaid wall being lowered to its initial position after the return of thepocket, and means carried by said advance wall of the pocket engageablewith end portions of the wrapper of an article on said support,previously fed by said pocket, for folding said end portions against theends of the article.

20. In a wrapping machine, a pocket having spaced walls adapted toreceive therebetween an said wall being lowered article and wrapper,means for feeding an articie and wrapper into said pocket, means formoving said pocket and said article and wrapper therein to a support.means for raising the advance wall of the pocket, said pocket movingmeans operating to return the pocket to its initial position after thesaid wall is raised and to its initial position

